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totowa
2012 Dec 01
0
Relative strength of regression predictors (relaimpo vs. relimp)
...the
predictors.
Predictor items of the questionnaire are on a scale from 0-3, and
technically ordinal, although most people treat them as metric.
I predict Y in a linear regression by these items (that differ from each
other drastically in mean), controlling for age and sex. N=6000.
m1 <- lm(totWAS ~ 1234x+s5+q6789x+s10+s11+s12+s13+s14+q1516x+
sex+age, data=D)
Now I want to find out about relative strengths. Standardized coefficients
differ in the profile from results obtained by the relaimpo and the relimp
packages, the largest differences exist for the variable age (which is the
only vari...